Daniel Patrick Moynihan was born in Oklahoma but moved to New York City at an early age. He was brought up in a poverty and shined shoes to make money. After high school, he worked as a longshoreman before joining the U.S. Navy, which sent him for officer training to Tufts University; he eventually returned to earn a Ph.D. in sociology from the Fletcher School of Law and Diplomacy. Moynihan had a distinguished career as a politician, diplomat, and Senator from New York. As a sociologist, he is best remembered for his writings about Americans in poverty, especially African-Americans, and concerns about one-parent families.